Xylem MULTI 1970I PORTABLE MULTIPARAMETER METERS - Manual (Page 8)

Overview Multi 1970i
6
Maximum number
of sensors to be con-
nected
The following sensors can be connected to the Multi 1970i (maximum
configuration):
z One pH depth armature or one pH electrode (combination electrode
or pH electrode + reference electrode). Please make sure that only
one pH sensor is connected at the same time.
z One D. O. sensor
z One conductivity measuring cell
z Option: One external temperature sensor
Note
The pH depth armature is affected by other sensors if it is connected to
them galvanically. For this reason, the pH depth armature cannot be
operated in the same test sample together with another sensor on the
instrument.
Connectors:
Sensor / Instrument Socket / Posi-
tion
pH depth armature 1
pH electrode or pH combination electrode 2
pH combination electrode with temperature sensor 2 and 4
Reference electrode 3
Temperature sensor, external 3 and 4
Oxygen sensor 5 or 6
Conductivity measuring cell 5 or 6
Printer or PC (serial interface, RS232) 7
Plug-in power supply unit 8
Watertight valve for internal pressure equalization 9
1
5
3
4
6
2 9
7
8